Rare \(B\)  meson decays have been a subject of great interest for the past two decades. These decays not only provide a
stringent tests of the Standard Model (SM), but also serve as a tool to extract physics beyond the SM in the flavor sector.
We remind that in the SM rare decays do not occur at tree order but proceed at loop level through the Glashow-Iliopoulos-Maiani
(GIM) mechanism [1]}. Attempts to unravel the imprints of physics in and beyond the SM in the flavor sector imply the study
of inclusive [2]} and exclusive [3]} \(B\) -meson decays. From an experimental point of view, exclusive decays are
easier to observe than inclusive decays. However, theoretically, exclusive decays are more challenging due to the uncertainties
in the calculation of hadronic transition form factors which, so far, are model-dependent quantities when computed
for the entire range of squared momentum transfer \(q^2\) . Different frameworks have been used to compute transition
form factors, namely within the constituent quark model (CQM), light cone sum rules (LCSR), QCD sum rules (QCDSR),
Dyson-Schwinger equation (DSE) approaches and lattice QCD (LQCD) amongst others. These form factors are the ingredients of
physical observables, such as branching ratios and different asymmetries related to final particle states, especially in
\(B\rightarrow K(K^{\ast })\ell ^{+}\ell ^{-}\)  [4]}, [5]}, [6]}, \(B\rightarrow \gamma \ell ^{+}\ell ^{-}\)  [7]} decays.
